Liquid-feeding device.



W-- A. BUTCHART.

LIQUID FEEDING DEVICE- APPLICATION man mm: 25. I911.

,51. Emma Feb. 19,1918.

T FKCE.

WILLIAM A. IBTJ'TCHART, 0F DENVER, COLORADO.

LIQUID-FEEDING DEVICE.

Liquid-Feeding Devices, of which the fol-. full. clear and exact descri lowing is a tion, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to liquid feeding devices of the type that comprise a rotatable element partially submerged in a body of liquid, and a scraper arranged in an inclined position in proximity to said rotatable element, so that it will scrape off or remove the liquid that adheres to said element and feed .said liquid to the apparatus or mechanism with which the device is used.

The main object of my invention is to provide a liquid feeding device of the general type referred to, in which the rotatable element consists of a substantially diskshaped member partially submerged in the liquid and the feeding means consists of one or more scrapers arranged so that they will remove the material that adheres to one or both of the vertical side faces of said member, thereby making it possible to feed liquid to a number of points or to a number of separate and distinctmachines or devices by means of a single rotatable element of comparatively small size.

Another obj ect is to providea liquidfeeding device of the general type referred to that is of simple design, of rugged construction and easy to control or regulate.

The figure of the drawings is a perspective view, illustrating a liquid feeding device constructed in accordance with my in: vention.

Referring to the drawing, which illustrates one form of my invention, A desige nates a receptacle or container that holds liquid which it is desired to supply in relatively small quantities to a machine or 'aparatus (not shown). B designates a rotatable element that dips into the liquid in the container Aand C designates a scraping device that. removesor scrapes off thexliquid that adheresto the element B and feeds said liquid to themachine or apparatus with which the device is used. The rotatable eleis V consists of a disk-shaped member arranged vert cally in the container A so,

ment. B

that the lower portion of same will be sub:

Specification of Letters Patent.

"0' that are presented 'to.

Patented Feb. 19, 1918.

Application filed June 25, 1917. Serial No. 176,928.

merged in the liquid in said container., The scraper C conslsts of a trough-shaped de vice arranged in an inclined position and so CllSPOSGClW'lth relation tothe rotatable element B that the upper end or inner-end :0 of

the scraper will extend parallel to the vertical side face a of the disk B, and thus scrape off the liquid that adheres to the side face a of said disk. By constructing the device in this manner I am able to use the other vertical side face of the disk B to convey the liquid in the container A to a second scraping device C arranged on the opposite side of the disk B. The scraper C is arranged at substantially right angles to the disk B, so that the inner end of said scraper will be presented to the vertical side face of the disk B with which it cooperates, but the scraper C is arranged substantially parallel to the disk B, so that one of the side edges at the upper end of .same will remove the liquid that adheres to the other vertical side face of said disk, the liquid that is removed from the disk by the scrapers C and C flowing down said scrapers and being discharged from the lower ends of same. The rotatable element B can be mounted in various ways without departing from the spirit of my invention, but I prefer to secure said element to a horizontally-disposed shaft 1 that is journaled in bearings 2 on the liquid. containerA. Any suitable means can be used for driving the element B,rbutr I prefer to formteeth 3 on the peripheral.

- line shafting of a mill or factory for driving 7 the disk B at a sufiiciently slow speed to insure the delivery of relatively small quantities of liquid from the discharge ends of the scrapers C and C, a thing that is ratherv diflicult to accomplish when, the shaft to whichthe rotatable element is connected is driven directly by a belt passing around a pulley on said shaft.

In order that the quantity of liquid "delivered by the scrapers C and C may be accurately controlled, I have provided means for adjusting said scrapers relatively to the rotatable element B, so as to vary the effective scraping areas of the devices C and the. elementiB'.

Any suitable adjusting means may be used for this purpose, but one means that I have found to be very efficient consists of an ad-' justing screw on the liquid container connected to the scraper with which it is used in such a manner that the effective scraping area of the scraper will be increased when said screw is turned in one direction and will be diminished when said screw is turned in the opposite direction. 7

In the device herein illustrated an ad justing screw 7 provided with a knurled head or finger p1ece-8 is mounted on the container A at substantially right angles to the scraper C, said screw being journaled in one of the end walls of said container and being provided in its inner end with a screw-threaded portion 9 that is threaded into one of the shaft bearings 2. The scraper C is provided on its underside with a block 10 through which the screw 7 passes, and washers or abutments 11 are arranged on said screw at opposite sides of said block, so as to cause the scraper C to move toward and away from the shaft 1 when the screw is turned in opposite directions, and thus cause the entire upper edge of the scraper to be presented to the vertical side face A of the disk 13, or only a portion of said edge to be presented to said face. In other words, when "the screw 7 is turned in one direction, the scraper C will be moved inwardly toward the shaft 1, so that the entire upper edge of same will scrape off liquid that adheres to the vertical side face of the disk B, and when said screw is turned in the opiosite direction, the scraper C will be moved outwardly, so that only a portion of the upper edge of same will act on the liquid that adheres to the vertical side face A of the disk. The adjustment of the scraper C is effected by moving said scraper in a di-' rection parallel to the disk B, so that more or less of the upper side edge of same that' acts on the disk will be presented to the vertical side face of the disk with which the scraper C cooperates. In the device herein shown the scraper C isrheld in adjusted position by means of one or moreclamping bolts 12 that pass through elongated slots in the side walls of the scraper and which v are tapped into a supporting block 13 on which the scraper C rests.

The complete device may either comprise one or a plurality of rotatable elements partially submerged in the liquid in the cointainer A,

and one or more'scraping devices that cooperate with each rotatable element. In the form of my in vention herein illustrated the device comprises two rotatable elements, thesecond element B being secured to the shaft 1 to which the element 13 is connected and arranged so that it will cooperate with scrapers C and C of similar construction to the scrapers (J and C, previously described.

If desired, the container A may be provided with a Vertical partition 14, so as to divide the interior of same into two compartments, each of which' may contain a different kind of liquid in case it is desired to use the device for feeding different kinds of liquids.- w

am able to use asingle rotatableelement for p supplying liquid totwo feeding devices, thus practically doubling the capacity of theapparatus. Furthermore, a liquidfeeding device ofthe construction above described is of suchsimple design that it can be manufactured at a'low cost; it is rugged and has no parts that are aptto get out of adjustment when the device is in use; and it can be driven at a sufliciently slow speed to insure the delivery of a relatively small quantity of liquid either to a single point or to a plurality of points.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is:

1. A liquid feeding device, comprising a rotatable element of substantially disk form partially, submerged in a body of liquid and arranged in a vertical position, and a device arranged to act on one of the vertical side faces of said elements so as to remove liquid that adheres to same andfeed said liquid to a point where it is to be used.

2. A liquid feeding device, comprising a rotatable element of substantially disk form partially submerged in a body of liquid and arranged in a vertical position, a device arranged to act on one of the vertical side faces of said element so as to remove liquid that adheres to same and feed said liquid to a point where it is to be used, and means for adjusting one of said parts relatively to the other so as to vary the effective scraping area of said device that is presented to the vertical side face of said rotatable ele-' ment.

3. A liquid feeding device, "comprising a p v r rotatable element of substantially disk form arranged 1n avertlcal 'p0s1t1on and partially submerged in a body of liquid, and

a plurality of scraping devices arranged on opposite sides of said rotatable clement and a body of liquid, a plurality of said element, and means whereby each of said scraping devices can be adjusted relatively to said rotatable element as to vary the effective scraping area of said devices and then increase or diminish the quantity of liquid that said devices remove from said element.

5. A liquid feeding device, comprising a vertically-disposed gear partially submerged in a body of liquid and provided with vertical side faces to which liquid adheres when said gear is in operation, a driving pinion that meshes with said gear, and a scraping device arranged so that it will act on one of the vertical side faces of said gear and remove the liquid that adheres to same.

6. A liquid feeding device, comprising a rotatable element of substantially disk form arranged in a vertical position and partially submerged in a body of liquid, and an inclined scraping device arranged at substantially right angles to said element with its upper end presented to one of the vertical side faces of said element so that it will remove liquid that adheres to said side face when the element is in operation.

7. A liquid feeding device, comprising a rotatable element of substantially disk form arranged in a vertical position and partially submerged in a body of liquid, and an inclined scraping device arranged at one side of said element in parallel relation to same and in such a position that one of the side edges of the upper portion of said device will scrape ofi liquid that adheres to one of the vertical side faces of said element.

8. A liquid feeding device, comprising a container provided with independent coinpartinents that hold liquid, a substantially disk-shaped, rotatable element arranged in each of said compartments in such a manner that it dips into the liquid in same, and inclined scraping devices arranged in such a manner that they will remove liquid from the vertical side faces of said rotatable elements and feed said liquid to points where the liquid is to be used.

9. A liquid feeding device, comprising a container that holds liquid, a horizontallydisposed shaft journaled in bearings on said container, a substantially disk-shaped, rotatable element on said shaft arranged in a vertical position and in such a manner that it Will dip into the liquid in said container, at trough-shaped scraping device arranged at substantially right angles to said element with its inner end presented to one of the vertical side faces of said element, and an adjusting screw on said container combined with said scraping device in such a manner that it can be actuated to move said scraping device toward and away from the axis of rotation of said rotatable element.

10. A liquid feeding device, comprising a container that holds liquid, a horizontallydisposed shaft journaled in bearings on said container, a substantially disk-shaped, rotatable element on said shaft arranged in a vertical position and in such a manner that it will dip into the liquid in said container, a trough-shaped scraping device arranged at substantially right angles to said element with its inner end presented to one of the vertical side faces of said element, an adjusting screw on said container combined with said scraping device in such a manner that it can be actuated to move said scraping device toward and away from the axis of rotation of said rotatable element, teeth on the periphery of said rotatable element, and a drive shaft provided with a pinion that meshes with said teeth.

lVILLIAM A. BUTCHART.

Copies of this patent may be obtained fcrfive cents each, by addressing the Commissioner of Patents, Washington, D. O. 

